Funding for this research was provided by:
Text and Data Mining valid from 2019-04-09
Received: 28 December 2018
Revised: 14 March 2019
Accepted: 16 March 2019
First Online: 9 April 2019
Compliance with ethical standards
: This study was funded by MSK K.K. (Tokyo, Japan). Shoki Okuda, Jumpei Tetsuka, Kenichi Takahashi, Takekazu Kubo and Shigeru Tokita are full-time employees of MSD K.K., and Yasuo Toda was a full-time employee of MSD K.K. at the time the study.
: This study was approved by Ethical Research Committee (NPO Clinical Research Promotion Network Japan).
: Written informed consent form and any written information provided to subjects received Ethical Research Committee’s approval (NPO Clinical Research Promotion Network Japan) in advance. Since the research was conducted through an online survey, respondents’ informed consent was obtained electronically.